topic Re: custom tiled layer with wrong AGSTile infomation? in ArcGIS Runtime SDK for iOS Questions

custom tiled layer with wrong AGSTile infomation?

lynnwang — Fri, 09 Mar 2012 03:29:29 GMT

hi,
   I'm work on the custom tiled layer sample and place a exploded tile folder in the app., the largest scale of which in the tiling scheme is about 1:250.
   When I browse the tiles on ipad,the tiles arrange regularly when the map scale is smaller 1:500???
   but if i browse to the last level,map scale is about 1:250,the tiles retured very abnormal. It looks like the new and wrong placed 1:500 tiles overlap the expanded 1:500 tiles i just browsed.
   I also set a breakpoint in the function (NSOperation<AGSTileOperation>*) retrieveImageAsyncForTile:   (AGSTile *) tile   {?????????}
   and found out the level property of the *tile is wrong.

   Has anyone met this problem before? And what's wrong with it?

p.s. The tiles display normally in Flex api.
   Here is the LOD infomation:
- <LODInfos xsi:type="typens:ArrayOfLODInfo">
- <LODInfo xsi:type="typens:LODInfo">
<LevelID>0</LevelID>
<Scale>2254.467762533835</Scale>
<Resolution>5.3644181298506988e-006</Resolution>
</LODInfo>
- <LODInfo xsi:type="typens:LODInfo">
<LevelID>1</LevelID>
<Scale>1128.4971760000001</Scale>
<Resolution>2.6852150254815902e-006</Resolution>
</LODInfo>
- <LODInfo xsi:type="typens:LODInfo">
<LevelID>2</LevelID>
<Scale>564.24858800000004</Scale>
<Resolution>1.3426075127407951e-006</Resolution>
</LODInfo>
- <LODInfo xsi:type="typens:LODInfo">
<LevelID>3</LevelID>
<Scale>282.12429400000002</Scale>
<Resolution>6.7130375637039756e-007</Resolution>
</LODInfo>
</LODInfos>

Re: custom tiled layer with wrong AGSTile infomation?

NimeshJarecha — Fri, 09 Mar 2012 15:41:59 GMT

If possible, attach your cache here and I'll test it with sample and see what's going on.

However, why are you using custom tiled layer sample. You should use ArcGIS Local Tiled Layer.

Instead of .tpk you can create uncompressed .zip file which works with AGSLocalTiledLayer. Please make sure that the zip MUST be uncompressed zip. You can use utilities like 7-zip or on Mac command line 'zip' utility with store only mode (zip �??o).

Regards,
Nimesh

Re: custom tiled layer with wrong AGSTile infomation?

lynnwang — Mon, 12 Mar 2012 23:52:12 GMT

Hi, Nimesh!

    I uploaded the exploded tile folder as an attachment. you can have some tests.

    And what do you mean about the zip tile folder ? You mean zip file can also be loaded as a AGSLocalTiledlayer? And how can I organize this zip folder?

    lynnew,
    best regards

Re: custom tiled layer with wrong AGSTile infomation?

lynnwang — Tue, 13 Mar 2012 01:12:22 GMT

I speculate it probably because some parameters through the calculation do not have enough precision.
When the resolution is too small, AGSTile can not get right level,row,column.

Re: custom tiled layer with wrong AGSTile infomation?

lynnwang — Fri, 16 Mar 2012 01:50:00 GMT

Hi, Nimesh

Is there any progress on this problem?

Re: custom tiled layer with wrong AGSTile infomation?

NimeshJarecha — Wed, 21 Mar 2012 18:07:08 GMT

Sorry for the late response.

You suspected right..though it turned out to be an issue in the AGSMapView and not in the sample. The AGSMapView was not handling that low resolution. It's been fix in the system and you won't see the same issue with the next version of the SDK release.

Thank you for reporting.

Regards,
Nimesh

Re: custom tiled layer with wrong AGSTile infomation?

lynnwang — Fri, 30 Mar 2012 08:27:40 GMT

Thank you for your response.
Hope next version will be coming soon.

Re: custom tiled layer with wrong AGSTile infomation?

NimeshJarecha — Fri, 30 Mar 2012 20:19:44 GMT

Yes, very soon! Stay tuned 🙂

Regards,
Nimesh

Re: custom tiled layer with wrong AGSTile infomation?

NimeshJarecha — Tue, 03 Apr 2012 21:55:16 GMT

The new version (v2.2) of the ArcGIS Runtime SDK for iOS is released. Please see what's new in version 2.2.

Regards,
Nimesh

Re: custom tiled layer with wrong AGSTile infomation?

RickJones — Tue, 10 Apr 2012 12:35:49 GMT

I'm curious if the new version fixed the problem before we upgrade.
I don't see this mentioned in the What's New.

Re: custom tiled layer with wrong AGSTile infomation?

NimeshJarecha — Tue, 10 Apr 2012 15:54:35 GMT

Yes, it is fixed! It's just a bug fix. Hence, not listed in the 'What's New' doc.

Regards,
Nimesh